https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81064
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
EDG warns for that code:
"ns.cc", line 9: warning: a redeclaration of inline namespace "n1::in" must be
declared inline
namespace in { }
^
But trunk still rejects it even with that change:
namespace n1 {
inline namespace in { }
inline namespace n2 {
inline namespace in { }
}
}
namespace n1 {
inline namespace in { }
}
ns.cc:9:20: error: conflicting declaration of namespace ‘n1::in’
inline namespace in { }
^~
ns.cc:2:20: note: previous declaration of namespace ‘n1::in’ here
inline namespace in { }
^~
